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Re:Deciding on a Diff for a Daily Driver

  • Lambert
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09 Jan 2022 06:57 #240985 by Lambert
This has given me pause to think, being later Temeraire has traction control and whilst I'm the first to say it's not a perfect system, I can't help think that with a quaife in the back she could be exceptional off road instead of merely brilliant? Time to get saving up.

Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
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09 Jan 2022 09:31 #240986 by Busta
Yes an LSD compliments traction control very nicely. It will be fantastic.
 
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09 Jan 2022 11:09 #240988 by Lambert
Just looking at the quaife and it seems they do both front and rear now. 1500 quid is a lot but I don't see what else you could spend that on that would make such a huge difference to the dynamics off road. With 2 I honestly don't see how you would ever really need to rely on the traction control, it would be virtually unstoppable unless you run out of ground clearance.

Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
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09 Jan 2022 12:50 #240991 by fordem

OK yes, I'm being opinionated again, but I just don't like crush tubes. On my LC I obtained from the states a proper "solid tube". It came with shims and was easy to set up. With a crush tube there is the possibility of flex and I believe a solid tube will eliminate this. I know a guy who had an ARB locker fitted to his LJ70 and flex caused the pinion teeth to dig into the ARB casing. This guy had no mechanical sympathy and his throttle was all or nothing.

Roger

This "flex" is not in the crush sleeve, it's the entire pumpkin that is flexing - it is a "known issue" and ARB has documented the fix for it in their installation guides - I've attached the relevant page for your convenience.

Essentially - the fix is to grind a few thou off the end face of the pinion and add a bevel to the outer edges of the teeth.
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09 Jan 2022 18:13 #240998 by Roger Fairclough
Fordem.

I know about the mod to the pinion, and it's another reason I don't like the ARB. If you are marketing a device to do something, then you should, in my opinion, ensure it fits without having to modify the original unit. To carry out this mod properly, you need to strip the pinion out to ensure you do not get any swarf inside the bearings etc. Not a 5 minute job. Also you are grinding into the hardened surface of the teeth and that can and probably will ensure breakup at the edge of the teeth.

I fitted the ARB in question and the fit was right on the limit. I advised the buyer and told him of the alternatives but he was happy with the fit as it was. As I mentioned, he was a brutal and unsympathetic driver who did not understand the meaning of the expression "fast as necessary, slow as possible". and his motor suffered as a consequence.

Lambert

If you have traction control and then fit a pair of Quaife's, surely the new diffs. would replace the Suzuki system so relying on them would not be an issue?

Roger

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09 Jan 2022 19:44 #241000 by Lambert
With locked diffs no but with a quaife if you get a wheel in the air power goes to that wheel so in that situation the traction control will apply selective abs to the wheel in the air much more effectively than doing so with left foot braking or the hand brake to allow the diffs to transfer power.

Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
ADOS Attention Deficit Ooooh Shiny!

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